Why Isn't Oxygen Produced by Organisms That Perform Anoxygenic Photosynthesis

question 43

Multiple Choice

Why isn't oxygen produced by organisms that perform anoxygenic photosynthesis?

• A) Their photosystems do not utilize the Calvin cycle.
• B) They use a different enzyme for the initial reactions of the Calvin cycle.
• C) They use electron donors other than water.
• D) Their membranes lack ATP synthase.
• E) Their chlorophyll contains an iron center rather than magnesium.

---

Definitions:

Earned-Income Activities

Activities or endeavors that generate revenue from work performed or services provided.

Revenue Generation

The process of earning income from business activities, often involving sales of goods or services, strategic partnerships, and other financial activities.

Microloans

Small loans typically offered to individuals or small businesses in underserved communities or developing countries to foster entrepreneurship.

Short-Term Loans

Loans that are meant to be repaid in a short period of time, typically less than a year, used to address immediate financial needs.